I could hello you could hello he could hello we could hello you could hello they could hello
Forma con V-ing
I could be helloing you could be helloing he could be helloing we could be helloing you could be helloing they could be helloing
Perfecto
I could have helloed you could have helloed he could have helloed we could have helloed you could have helloed they could have helloed
Perfecto con V-ing
I could have been helloing you could have been helloing he could have been helloing we could have been helloing you could have been helloing they could have been helloing
Negación
Forma simple
I couldn't hello you couldn't hello he couldn't hello we couldn't hello you couldn't hello they couldn't hello
Forma con V-ing
I couldn't be helloing you couldn't be helloing he couldn't be helloing we couldn't be helloing you couldn't be helloing they couldn't be helloing
Perfecto
I couldn't have helloed you couldn't have helloed he couldn't have helloed we couldn't have helloed you couldn't have helloed they couldn't have helloed
Perfecto con V-ing
I couldn't have been helloing you couldn't have been helloing he couldn't have been helloing we couldn't have been helloing you couldn't have been helloing they couldn't have been helloing
Forma interrogativa
Forma simple
could I hello? could you hello? could he hello? could we hello? could you hello? could they hello?
Forma con V-ing
could I be helloing? could you be helloing? could he be helloing? could we be helloing? could you be helloing? could they be helloing?
Perfecto
could I have helloed? could you have helloed? could he have helloed? could we have helloed? could you have helloed? could they have helloed?
Perfecto con V-ing
could I have been helloing? could you have been helloing? could he have been helloing? could we have been helloing? could you have been helloing? could they have been helloing?
Forma interro-negativa
Forma simple
couldn't I hello? couldn't you hello? couldn't he hello? couldn't we hello? couldn't you hello? couldn't they hello?
Forma con V-ing
couldn't I be helloing? couldn't you be helloing? couldn't he be helloing? couldn't we be helloing? couldn't you be helloing? couldn't they be helloing?
Perfecto
couldn't I have helloed? couldn't you have helloed? couldn't he have helloed? couldn't we have helloed? couldn't you have helloed? couldn't they have helloed?
Perfecto con V-ing
couldn't I have been helloing? couldn't you have been helloing? couldn't he have been helloing? couldn't we have been helloing? couldn't you have been helloing? couldn't they have been helloing?